CN209154052U - A kind of dental implant - Google Patents

Abstract

The utility model provides a kind of dental implant, including matrix, and connecting hole is offered at the top of matrix, and the outer surface of the matrix is porous spongy structure.The utility model is by being set as porous spongy structure for the outer surface of matrix, be conducive to osteocyte and climb into intrinsic silicon growth, and make planting body and osteocyte formed it is latticed combine closely, effectively prevent the generation that bone regeneration around implant carries out marginality bone resorption, guarantee the long-time stability of planting body.

Description

A kind of dental implant

Technical field

The utility model relates to field of oral cavity medical equipment more particularly to a kind of dental implants.

Background technique

With the continuous development and maturation of tooth-planting, gradually substitution conventional repair techniques become tooth to oral implant rehabilitation The preferred therapeutic scheme of Lieque damage, dentition defect.But tooth-implanting still has some problems, as planting body loosens, planting body Fracture, that bone regeneration around implant carries out marginality bone resorption, bone tissue healing rate is slow, primary stability it is difficult to ensure that.Daily In clinical position, clinician often pays much attention to how to improve failure of the clinical technology to avoid dental implant, does not infuse but The design concept anticipated to planting body directly influences clinical effectiveness.

Summary of the invention

Insufficient for at least one of the prior art, the purpose of the utility model is to provide one kind can be reduced absorption of alveolar bone Dental implant.

In order to achieve the above objectives, technical solution provided by the utility model are as follows: a kind of dental implant, including matrix, matrix Top offer connecting hole, the outer surface of the matrix is porous spongy structure.

In above scheme, by the way that the outer surface of matrix is set as porous spongy structure, is conducive to osteocyte and climbs into matrix Growth inside, and make planting body and osteocyte formed it is latticed combine closely, effectively prevent bone regeneration around implant and carry out marginality The generation of bone resorption guarantees the long-time stability of planting body.

Further, the cross section outer profile of above-mentioned matrix is circle, and base bottom end face is arc surface, can be effectively Dispersive stress avoids stress collection from neutralizing the damage to cancellous bone, and the cross section of baseline top is gradually increased from bottom to top, in this way The contact area with gum can be increased, gingiva tissue form is made to grow more natural.

Preferably, the cross section of above-mentioned connecting hole is regular polygon, can prevent base station phase after being cooperatively connected with base station Planting body is rotated, the stability of connection is improved.

Further, snap ring is equipped in above-mentioned connecting hole, it is spherical when being connect with lower end with the base station of hemisphere jut Protrusion and snap ring snapping, so that base station and planting body stable connection, base station are not easily disconnected from planting body.

Further, above-mentioned matrix surface is covered with a nanometer dicalcium silicate coating, nanometer dicalcium silicate coating have at Bone effect, can be with promoting bone growing.

The dental implant of the utility model can be effectively prevented from bone regeneration around implant and carry out marginality bone resorption, guarantee plantation Long-time stability of body, and the cross section of matrix is circle, bottom end face is arc surface, can effectively dispersive stress, avoid answering Power collection neutralizes damage of the root to cancellous bone, moreover it is possible to and promote gingiva tissue form to grow to obtain more natural and promoting bone growing, and Stable structure.And snap ring is added in connecting hole, the axial of base station can be limited with this and moved with base station lower end hemisphere jut snapping It is dynamic, it prevents base station to be detached from planting body easily, further increases the stability of assembly.

Detailed description of the invention

Fig. 1 is the schematic front view of the dental implant of the utility model embodiment.

Fig. 2 is the sectional view in the portion A-A in Fig. 1.

Fig. 3 is the schematic top plan view of the dental implant of the utility model embodiment.

Fig. 4 is porous spongy structure chart.

Fig. 5 is the abutment structure schematic diagram being cooperatively connected with the dental implant of the utility model embodiment.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing.

Embodiment

As shown in Figs 1-4, the utility model provides a kind of dental implant, including matrix 1, and the top of matrix 1 offers column The cross section of shape connecting hole 2, connecting hole 2 is regular polygon, and matched base station lower part is also regular polygon cylinder, is used When, after the connecting hole 2 is inserted into base station lower part, it can effectively prevent base station and rotated relative to planting body, improve the company of base station and planting body Connect stability, wherein the cross section of connecting hole 2 is preferably positive side triangle, connect base station with planting body more stable and square Just.

The outer surface of above-mentioned matrix 1 is porous spongy structure, is conducive to osteocyte and climbs into 1 growth inside of matrix, and Make planting body and osteocyte formed it is latticed combine closely, effectively prevent bone regeneration around implant and carry out marginality bone resorption.

In order to further increase the stability connecting with base station, snap ring 21, the card of the present embodiment are equipped in above-mentioned connecting hole 2 Ring 21 is to be oppositely arranged to constitute by the spring of two similar Ω shapes, and the middle part of spring is semicircle, and both ends are straight rod-shaped, spring Both ends be fixed on the hole wall of connecting hole 2 so that forming borehole structure in the middle part of snap ring 21.Match with the present embodiment dental implant When the base station 3 of set connects, as shown in figure 5, the lower end of base station 3 has hemisphere jut 4, the Circularhole diameter at 21 middle part of snap ring is less than ball The diameter of shape protrusion 4, hemisphere jut 4 is passed through from 21 middle part circular hole of snap ring causes Cavity expansion method, and hemisphere jut 4 is received across rear circular hole Contracting resets, to clasp 4 upper end of hemisphere jut, the axial movement of base station 3 is limited with this, so that base station is connect surely with planting body Gu base station is not easily disconnected from planting body.

Scheme as an improvement of this embodiment, the cross section outer profile of above-mentioned matrix 1 are circle, 1 bottom of matrix End face is arc surface, can effectively dispersive stress, avoid the stress collection from neutralizing damage of the root to cancellous bone, and 1 top of matrix Cross section is gradually increased from bottom to top, so that being in truncated cone-shaped at the top of matrix 1, can be increased the contact area with gum in this way, be made Gingiva tissue form grows more natural.

The porous spongy structure of above-mentioned 1 outer surface of matrix is covered with a nanometer dicalcium silicate coating, nanometer dicalcium silicate Coating has bone-forming effect, can be with promoting bone growing.

Micro- porous spongy structure of the dental implant surface of the present embodiment climbs into growth conducive to osteocyte, is newly formed Bone trabecula and planting body integrate, and effectively prevent the generation that bone regeneration around implant carries out marginality bone resorption, guarantee plantation The long-time stability of body.

Above-described the embodiments of the present invention does not constitute the restriction to scope of protection of the utility model, appoints It is practical new to should be included in this for modifications, equivalent substitutions and improvements etc. made by where within the spiritual principles of the utility model Within the claims of type.

Claims (4)

1. a kind of dental implant, including matrix (1), offering at the top of matrix (1) can be special with base station mating connection hole (2) Sign is: the outer surface of the matrix (1) is porous spongy structure, and the cross section outer profile of the matrix (1) is circle Shape, matrix (1) bottom end face are arc surface, and the cross section at the top of matrix (1) is gradually increased from bottom to top.

2. dental implant according to claim 1, it is characterised in that: the cross section of the connecting hole (2) is positive polygon Shape.

3. dental implant according to claim 1, it is characterised in that: be equipped with snap ring (21) in the connecting hole (2).

4. dental implant according to any one of claims 1 to 3, it is characterised in that: described matrix (1) surface is covered with Nanometer dicalcium silicate coating.